This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 11 Transport In Plants – Quiz 12 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 11 Transport In Plants Quiz 12 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Water enters the root hair cells by the process of: A) Transpiration. B) Active transport. C) Osmosis. D) Diffusion. Show Answer Correct Answer: C) Osmosis. 2. What is a characteristic of xerophytes? A) Absence of roots. B) Absence of vascular tissue. C) Leaves with very small surface area. D) Large number of stomata. Show Answer Correct Answer: C) Leaves with very small surface area. 3. The conducting tissue or transporting tissue A) Seive tubes. B) Tracheids. C) Xylem phloem. D) Vessels. Show Answer Correct Answer: C) Xylem phloem. 4. The lowest water potentials in the xylem are in the- A) Vascular cylinders of root. B) Tracheids of the stem. C) Leaves. D) Root hairs. Show Answer Correct Answer: C) Leaves. 5. What is a liquid that a substance dissolves in called? A) Solute. B) Solution. C) Solvent. D) None of the above. Show Answer Correct Answer: C) Solvent. 6. Which type of cell in xylem is responsible for food storage? A) Parenchyma. B) Vessels. C) Tracheids. D) Fiber cells. Show Answer Correct Answer: A) Parenchyma. 7. How does the structure of xylem cells aid in their function? A) They have thick, lignified walls to withstand pressure. B) They have large pores to allow easy water movement. C) They have chloroplasts for photosynthesis. D) They store water for later use. Show Answer Correct Answer: A) They have thick, lignified walls to withstand pressure. 8. Define transportation in plants A) When food moves from the roots to the various parts of the plant. B) When the substances absorbed are synthesised in one part and transported to other parts of the plant. C) All the above. D) None of the above. Show Answer Correct Answer: B) When the substances absorbed are synthesised in one part and transported to other parts of the plant. 9. The vascular bundles of plants refers to ..... and ..... , and they can be found within the ..... , stem, and roots. A) Phloem, leaves, Xylem. B) Xylem, phloem, leaves. C) Phloem, xylem, meristem. D) Xylem, phloem, flowers. Show Answer Correct Answer: B) Xylem, phloem, leaves. 10. Gases pass in and out of a leaf through the what? A) Vascular tissue. B) Mouth hole. C) Stomata. D) Cell wall. Show Answer Correct Answer: C) Stomata. 11. What tissue plays the role of protection and prevention of water loss A) Ground. B) Vascular. C) Merisetmic. D) Dermal. Show Answer Correct Answer: D) Dermal. 12. In what plant cell organelle does photosynthesis occur? A) Chloroplasts. B) Mitochondria. C) Nucleus. D) Cell Wall. Show Answer Correct Answer: A) Chloroplasts. 13. Identify the process that involves the loss of water vapour from leaves A) Translocation. B) Osmosis. C) Transpiration. D) Photosynthesis. Show Answer Correct Answer: C) Transpiration. 14. As compared with xylem vessels, phloem sieve tube cells A) Have empty lumen. B) Have nuclei. C) Have mitochondria. D) Have cytoplasm. Show Answer Correct Answer: D) Have cytoplasm. 15. The movement within the phloem can be in which directions? A) Only downwards. B) Only upwards. C) Up or down the stem. D) In a circular motion. Show Answer Correct Answer: C) Up or down the stem. 16. Which blood vessel carries blood from the lungs to the heart? A) Pulmonary vein. B) Vena cava. C) Aorta. D) Pulmonary artery. Show Answer Correct Answer: A) Pulmonary vein. 17. Xylem pits possess ..... meshwork within them but they lack ..... A) Lignin, celulose. B) Cellulose, suberin. C) Celulose, lignin. D) Lignin, cellulose. Show Answer Correct Answer: B) Cellulose, suberin. 18. A job of the phloem is to ..... A) Transport food. B) Absorb water and minerals. C) Make food. D) Transport water. Show Answer Correct Answer: A) Transport food. 19. Transpiration plays no role in regulating the temperature of leaves. A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: A) False. 20. Air bubbles can disrupt water movement in xylem. Which structural feature helps prevent their spread between vessels? A) Stomata openings venting trapped gases. B) Wider vessel diameters reducing pressure. C) Cellulose pits allowing water but blocking air. D) Cuticle layers lining vessel walls. Show Answer Correct Answer: C) Cellulose pits allowing water but blocking air. 21. Which of these statements correctly describe transport pathways in dicotyledonous plants?I $\rightarrow$ In the apoplast pathway, water may move through plasmodesmata.II $\rightarrow$ In the symplast pathway, water may move through intercellular spaces. III $\rightarrow$ The apoplast pathway may be blocked by the Casparian strip. A) I and II. B) I and III. C) II and III. D) III only. Show Answer Correct Answer: D) III only. 22. What is the way in which a plant/leaf loses water? A) Translocation. B) Harry porter. C) Transportation. D) Transpiration. Show Answer Correct Answer: D) Transpiration. 23. The casparian strip at the endodermis blocks which pathway A) Evaporation. B) Transpiration. C) Apoplast. D) Symplast. Show Answer Correct Answer: C) Apoplast. 24. True or false:transpiration increases as humidity increases A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: A) False. 25. During a science experiment, Benjamin observed how temperature changes affected the rate of photosynthesis in a group of plants. What did he learn about the relationship between temperature and photosynthesis? A) There is an optimal temperature range for photosynthesis. B) Photosynthesis is unaffected by temperature. C) Lower temperatures always decrease photosynthesis. D) Higher temperatures always increase photosynthesis. Show Answer Correct Answer: A) There is an optimal temperature range for photosynthesis. 26. What does the phloem transport A) Air. B) Sugar. C) Water. D) Minerals. Show Answer Correct Answer: B) Sugar. 27. Which of these is seen in the xylem? A) End plate. B) Lignin. C) Sieve tube element. D) Nucleus. Show Answer Correct Answer: B) Lignin. 28. Which ion is needed for chlorophyll production? A) Nitrates. B) Magnesium. C) Hydrogen. D) Oxygen. Show Answer Correct Answer: B) Magnesium. 29. The primary difference between the apoplast and the symplast is that the- A) Apoplast is non-living spaces and cell walls. B) Apoplast relies on active transport. C) Symplast is nonliving spaces and cell wall. D) Apoplast prevents passive diffusion. Show Answer Correct Answer: A) Apoplast is non-living spaces and cell walls. 30. The inside of the xylem A) Lignin. B) Vessels. C) Tracheids. D) Lumen. Show Answer Correct Answer: D) Lumen. 31. Which of the following factors affect the rate of transpiration in plants? A) Temperature. B) Humidity. C) Light intensity. D) All of the above. Show Answer Correct Answer: D) All of the above. 32. Companion cells are packed full of ..... to make ATP. A) Proton pumps. B) Chloroplasts. C) Mitochondria. D) Cytoplasm. Show Answer Correct Answer: C) Mitochondria. 33. Xylem tubes transport substances in which direction? A) Up. B) Up and down. C) All the above. D) None of the above. Show Answer Correct Answer: A) Up. 34. Xylem vessels are dead and have no cytoplasm. This helps it so ..... A) Water flow is not slowed down. B) It forms an empty tube for water to flow through. C) Water and minerals can enter and leave the cells. D) None of the above. Show Answer Correct Answer: B) It forms an empty tube for water to flow through. 35. The translocation of organic solutes through phloems is bidirectional because- A) Root acts as source and leaf acts as sink. B) Source and sink irreversed in any season. C) Translocation is ATP regulated process. D) Source-sink relationship is variable depending upon season or needs of plant. Show Answer Correct Answer: D) Source-sink relationship is variable depending upon season or needs of plant. 36. What is the main function of the roots in a plant? A) To produce flowers. B) To absorb water and nutrients. C) To perform photosynthesis. D) To transport food. Show Answer Correct Answer: B) To absorb water and nutrients. 37. Due to the higher concentration of oxygen in the air than your blood, oxygen goes from the lungs into the red blood cells by ..... A) Active Transport. B) Facilitated Diffusion. C) Simple Diffusion. D) Osmosis. Show Answer Correct Answer: C) Simple Diffusion. 38. William is observing a plant in his garden. He notices that the plant is able to transport nutrients and energy from its leaves to other parts of the plant. What is this process called? A) Movement of sucrose and amino acids through phloem. B) Movement of water through xylem. C) Evaporation of water from leaves. D) Absorption of nutrients by roots. Show Answer Correct Answer: A) Movement of sucrose and amino acids through phloem. 39. Which BEST describes a biological sink? A) Where dishes are washed. B) Where sugars come from and load into vascular bundle. C) The areas of a plant where amino acids come from. D) The areas in plants where organic substances are unloaded to. Show Answer Correct Answer: D) The areas in plants where organic substances are unloaded to. 40. An increase in which factor will reduce the flow of water in the xylem? A) Air temperature. B) Light intensity. C) Atmospheric humidity. D) Wind speed. Show Answer Correct Answer: C) Atmospheric humidity. 41. What is the main cause of root pressure in plants? A) Cohesion. B) Translocation. C) Active transport. D) Osmosis. Show Answer Correct Answer: D) Osmosis. 42. How does light affect the movement of phloem sap? A) It increases sugar production through photosynthesis. B) It decreases phloem activity. C) It stops water uptake. D) It has no effect. Show Answer Correct Answer: A) It increases sugar production through photosynthesis. 43. If a cell is placed in a ISOTONIC solution, water will move ..... of the cell, causing it to ..... A) Into, swell. B) Out of, shrivel. C) In and out of the cell, stay the same. D) None of the above. Show Answer Correct Answer: C) In and out of the cell, stay the same. 44. What are sieve tubes in phloem specialized for? A) Defense against pathogens. B) Water conduction. C) Transporting food. D) Photosynthesis. Show Answer Correct Answer: C) Transporting food. 45. What happens to the water potential in root hair cells after water enters them? A) It becomes negative. B) It increases. C) It decreases. D) It remains unchanged. Show Answer Correct Answer: B) It increases. 46. Which of the following is NOT a characteristic of the phloem? A) Transports water. B) Contains sieve tube elements. C) Moves sugars and amino acids. D) Involved in translocation. Show Answer Correct Answer: A) Transports water. 47. The phloem is made up of sieve tube plates and companion cells. The companion cells A) Has pores to allow sugar to be transported in a continuous flow. B) Provides energy for the transport of glucose. C) Gives company to the phloem. D) Connects xylem to phloem. Show Answer Correct Answer: B) Provides energy for the transport of glucose. 48. Evaporation (the driving force) A) The higher water potential of air causes evaporation from cell walls. B) The lower water potential of air causes evaporation from cell walls, lowering the water potential in cell walls and cytoplasm. C) Evaporation is driven by the temperature of the water. D) Evaporation occurs only in the presence of sunlight. Show Answer Correct Answer: B) The lower water potential of air causes evaporation from cell walls, lowering the water potential in cell walls and cytoplasm. 49. What is facilitated diffusion in the context of mineral transport? A) Active transport of minerals against concentration gradient. B) Passive movement of water through xylem. C) Movement of ions from soil to roots through carrier proteins. D) Osmosis of water into root cells. Show Answer Correct Answer: C) Movement of ions from soil to roots through carrier proteins. 50. Movement of water up a plant through the xylem vessels is due to? I Transipration-cohesion-tension mechanism II Root pressure III Presure flow A) I only. B) I and II only. C) II and III only. D) I, II and III. Show Answer Correct Answer: B) I and II only. 51. True or False:phloem walls are made of cellulose and lignin A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: A) False. 52. Companion cells are found along with sieve tube elements in the phloem. A) FALSE. B) TRUE. C) All the above. D) None of the above. Show Answer Correct Answer: B) TRUE. 53. Vascular tissue that forms tubes that transport dissolves food throughout a plant A) Root hair. B) Nonvascular plant. C) Phloem. D) Xylem. Show Answer Correct Answer: C) Phloem. 54. Girdling experiment proves that A) Phloem is the tissue responsible for the translocation of food. B) Transport via phloem essentially takes place in one direction. C) The direction of food transport is downwards. D) All the above. Show Answer Correct Answer: D) All the above. 55. William is observing a plant in his garden on a sunny day. He notices that the leaves seem to be losing moisture. What is this process called? A) The loss of water vapor from leaves. B) The process of photosynthesis. C) The absorption of water by roots. D) The movement of nutrients in phloem. Show Answer Correct Answer: A) The loss of water vapor from leaves. 56. A botanist discovered a mutant plant that was unable to produce materials that form casparian strip. This plant would be A) Unable to transport water or solutes to the leaves. B) Unable to use its sugar as a sugar sink. C) Able to exert greater root pressure than the normal plant. D) Unable to control amounts of water and solutes it absorbs. Show Answer Correct Answer: D) Unable to control amounts of water and solutes it absorbs. 57. Cells of the xylem of dead A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 58. Endodermal cells differ from other cells in root. They- A) Lack symplast region. B) Have a high rate of water transport. C) Are completely surrounded by a waxy layer. D) Prevent water and ions from moving between them. Show Answer Correct Answer: D) Prevent water and ions from moving between them. 59. During a biology class, Charlotte is studying a diagram of a stem cross-section. She wonders, which color represents xylem tissue in the diagram? A) Green. B) Blue. C) Yellow. D) Pink. Show Answer Correct Answer: D) Pink. 60. Which process is not responsible for the upward movement of water in the xylem vessels? A) Translocation. B) Capillary action. C) Transpiration pull. D) Root pressure. Show Answer Correct Answer: A) Translocation. ← PreviousNext →Related QuizzesScience QuizzesClass 11 QuizzesClass 11 Biology Chapter 11 Transport In Plants Quiz 1Class 11 Biology Chapter 11 Transport In Plants Quiz 2Class 11 Biology Chapter 11 Transport In Plants Quiz 3Class 11 Biology Chapter 11 Transport In Plants Quiz 4Class 11 Biology Chapter 11 Transport In Plants Quiz 5Class 11 Biology Chapter 11 Transport In Plants Quiz 6Class 11 Biology Chapter 11 Transport In Plants Quiz 7Class 11 Biology Chapter 11 Transport In Plants Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books